The Screw,shoulder, cataloged under National Stock Number 5305-01-581-6745, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-581-6745 |
| Primary Part Number | HL19PB70-5-14 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Width Across Flats | 0.080 INCHES NOMINAL IN |
| Fastener Length | 1.375 INCHES NOMINAL IN |
| Shoulder Length | 0.041 INCHES NOMINAL OVERALL IN |
| Surface Treatment Document and Classification | QQ-P-416 TYPE 2 CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Shoulder Diameter | 0.261 INCHES NOMINAL OVERALL IN |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Shoulder Shape | ROUND OVERALL |
| Material Document and Classification | MIL-8-5000, MIL-8-5626 OR MIL-8-8049 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Single Shear Strength | ERR-060 |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Color | BRONZE OVERALL |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 1290 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Quantity Per Inch | 8 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.261 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| HL19PB70-5-14 PRIMARY | Hi-Shear Corporation (USA) |
| HL19PB70-5-14 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
NSN 5305-01-581-6745 is a Screw,shoulder, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-581-6745 has 2 manufacturer part numbers on file: HL19PB70-5-14 (Hi-Shear Corporation), HL19PB70-5-14 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc).
Key specifications for HL19PB70-5-14: Width Across Flats: 0.080 INCHES NOMINAL IN; Fastener Length: 1.375 INCHES NOMINAL IN; Shoulder Length: 0.041 INCHES NOMINAL OVERALL IN; Surface Treatment Document and Classification: QQ-P-416 TYPE 2 CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL. 21 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.